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Finding the Fourth Proportional to 171,745.56, 257,619.02 and 71,835.68

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Solution

The fourth proportional to 171,745.56, 257,619.02 and 71,835.68 is: 107,753.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,745.56 : 257,619.02 = 71,835.68 : x
  2. Step 2: Convert to fraction form
    171,745.56/257,619.02 = 71,835.68/x
  3. Step 3: Cross multiply
    171,745.56x = 257,619.02 × 71,835.68
  4. Step 4: Simplify right side
    171,745.56x = 18,506,237,482.63
  5. Step 5: Solve for x
    x = 18,506,237,482.63/171,745.56
  6. Step 6: Final answer
    x = 107,753.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.